Abstract: A pressure gauge for semiconductor processing that defines an internal flow path from the socket inlet to the displaceable end of the Bourdon tube that is shelf free so as to be self drainable for internal cleansing and purging whereby to avoid any trapping of contaminants that could subsequently have a deleterious affect on the process.

Abstract: A tree felling attachment apparatus for a farm tractor having connections for rear mounting the attachment onto the hydraulic lift arms and stabilizer bar of the tractor. The attachment includes an elongated longitudinal beam extending rearward behind the tractor that terminates at its distal end in a gripper operable between open and closed positions to receive and grip a tree trunk to be felled. In response to rearward driving of the tractor, the gripper effects felling of the tree disposed therein while enabling the tractor to remove the felled tree to a suitable disposal site.

Abstract: A pressure gauge is disclosed includes a snap-in interfit between a window and case and between the case and socket. A coiled Bourdon tube within the case directly drives a pointer located intervening between the window and a dial retained by the window.

Abstract: Mounting apparatus for securing instruments onto the mast of a sailboat comprising a U-shaped frame adapted for lateral placement in an interfit relation with the mast and hose straps extending from one side of the frame to about the backside of the mast for receipt by hose clamps on the other side of the frame that draw the straps and frame into a snug-tight relation about the mast.

Abstract: A replacement re-cover drain top for a deteriorated top of an existing drain situated in the deck area about a swimming pool. The re-cover top is of a channel-like section and is adapted when installed to overlie an existing drain from which its previous top has been at least partially removed. Drain apertures in the top communicate with the drain on which it is installed from below the upper surface of the top to a depth corresponding at least to the flush level of the adjacent decking.

Abstract: A hanger assembly for supporting a vertical load at a selected site flush mounted beneath the underside of a drop ceiling. Comprising the assembly is a pair of bars normally intersecting in T formation and mounted onto the T rails of a lattice framework supporting the individual ceiling panel at the selected site. The bars can be variably positioned so as to intersect at any selected site location and by means of a bracket are permanently secured together with a junction box at the underside of the intersection. The bracket in turn is connected for static loading to a depending chain attached to the building structure above the ceiling and adjustably rendered taut to a predetermined tension by means of a turnbuckle attachment. For supporting an attached load, the load bolts have flat heads with canted ends and depend through apertures in both the top wall and ears of the junction box.

Abstract: A system of corrosion protection and a method of applying the protection on items to be used or being used in marine environments and otherwise susceptible to the deleterious effects of erosion and/or corrosion. The protection is comprised of a coating formed of a polyamine converter and an epoxy resin that can be applied either to virgin metal or to pre-existing metallic items immersed below sea level and a rigid cladding such as fiberglass reinforced pipe encapsulating the coating. Where on site restoration of an item is to be performed, some or all of the coating and cladding application can be conducted underwater by preceding the applications with an abrasive blasting of the surface to be protected.

Abstract: Crosshead apparatus for receiving molten plastic from an extruder to be dispensed as plastic tubing or as a sheathing or jacket about a continuously fed product core such as wire. The crosshead includes a body and manifold within the body having a central passage in which the core to be jacketed is continuously fed. The plastic to be dispensed is constantly heated for temperature stability so as to maintain the flow in a molten state while a predetermined smooth transition flow path forms a substantially annular distribution plane from which the flow concentrically converges about the passing product core at the dispensing site.

Abstract: A brake mechanism for a shopping cart able to brake an unattended cart while enabling manual release of the brakes for user control and automatic release of the brakes in response to telescoping joinder of the carts. Comprising the braking mechanism is a brake pad at the underside of a pair of vertically disposed brake rods displaceable for the pads to engage and disengage the caster wheels of the cart. A compressed coil spring on each brake rod biases the pad thereat toward engagement with the wheels. A transverse actuator bar adjacent the cart handle, when squeezed toward the cart handle, causes the brake rod to incur an upward camming and effect release of the brakes. At the same time, a second actuator bar resting on the swing seat of the cart and displaceable upwardly with the swing seat in response to telescoping of the carts is pivotally displaced upwardly in response to telescoping to raise the brake rods and release the brakes.

Abstract: Method and apparatus is disclosed for displacing a process fluid to effect agitation thereof in a laminar flow relation past a work piece being treated by the fluid. Where the process fluid comprises a liquid, a logic circuit is operative to oscillate the liquid by raising and lowering the liquid level about the work piece in a controlled cycle and stroke. Where the process fluid comprises a gas, the process gas is displaced or compressed and decompressed about the work piece in a controlled operating cycle. Various embodiments are disclosed for varying the operating parameters.

Abstract: Separation method and apparatus in which fluids to be separated into component portions are dynamically separated by a multilayed laminar disc primary impeller that spins at high velocity within a closely fitting cylindrically concentric housing. Separated liquids and/or particulates received from the impeller are allowed to fall into a cavity or conical housing directly beneath the impeller where remixing is prevented while causing the separated fluid component portions to exit separately. The impeller is secured to a tubular shaft acting as a vortex finder. Above the primary impeller is a secondary impeller commonly driven by the same shaft to siphon relatively lighter fluid component portions through the center of the vortex finder and increase output. In the case of solids separation, an underflow trap at the underside exit of the conical housing may be equipped with a flow powered auger that extrudes the settled solids through a spring loaded gate.

Abstract: A channel-like member defines a track section for supporting elongated lengths of fiber optic lighting about the interior perimeter wall of a swimming pool. The member is comprised of a polymeric composition with which there is integrally formed an anchor arm extending rearwardly away from the track section. When mounting the member, the anchor arm is positioned to extend overlying the pool edge to within the unfinished decking area in which decking mortar or aggregate is to be introduced. Receipt and curing of the decking mortar or aggregate along with the weight of the decking permanently secures the anchor arm and member at the selected mounting location. Also included integrally of the track body is a flashing ledge secured laterally rearward therefrom to be positioned horizontally intervening between the decking and the pool wall.

Abstract: A system for proportional liquid dispensing of two liquids, the first of which can comprise the main flow drinking water supplied to livestock or poultry and the second of which can comprise controlled quantities of medication or nutrient to be introduced into the drinking water. Comprising the system is a solenoid operated pump for discharging controlled quantities of the second liquid into the main flow. A flow meter emits an electrical signal of the main flow rate at any given time while an optical pressure sensor emits an electrical signal indicative of the static pressure of the main flow. Logic circuits combine the flow rate and pressure signals for varying pump operation to controllably maintain a predetermined mixture ratio of the two liquids.

Abstract: A body restraining device for physically restraining an individual and comprised of a foraminous shroud defined by an elongated length and tubular section having the upper shroud end closed and the lower shroud end open. The shroud is preferably comprised of a high-strength netting material such that drawing the open end downward over the head of an erect person to past the feet, effectively restrains the person against injurious movement. Once the shroud is in place, the restrained person can easily be forced into a bent posture enabling the shroud ends to be knotted together for securing the restraint device. Strap means are provided for maintaining the shroud in a collapsed position in readiness for subsequent use.

Abstract: A pipe coupling for the joining of plain end pipe that includes an annular gasket and a compressible lock ring at each end of the coupling between a tubular middle ring and an annular follower. Bolts extending between the opposite followers are effective when tightened to compress both the gasket and lock ring into their operative relation for sealing and gripping a coupled pipe end, respectively. The follower is comprised of a unitary structure integrally cast to define an internal annular protuberance that juxtaposedly confronts the radially rearward surface of the gasket. Also defined by the follower inward of the protuberance is a central opening at least partially tapered frusto-conically and in which the lock ring is initially supported controllably spaced from the gasket. Tightening of the bolts enables gasket sealing pressure to be achieved about the pipe end sequentially before a completed restraing grip on the pipe end is attained by the lock ring.